Rapid doubling of the critical current of YBa 2 Cu 3 O 7-δ coated conductors for viable high-speed industrial processing

We demonstrate that 3.5-MeV oxygen irradiation can markedly enhance the in-field critical current of commercial second generation superconducting tapes with an exposure time of just 1 s per 0.8 cm2. The speed demonstrated here is now at the level required for an industrial reel-to-reel post-processi...

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Published in:Applied physics letters 2015-11, Vol.107 (19)
Main Authors: Leroux, M., Kihlstrom, K. J., Holleis, S., Rupich, M. W., Sathyamurthy, S., Fleshler, S., Sheng, H. P., Miller, D. J., Eley, S., Civale, L., Kayani, A., Niraula, P. M., Welp, U., Kwok, W. -K.
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Language:English
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CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
defects
energy storage (including batteries and capacitors)
phonons
spin dynamics
superconductivity
thermal conductivity
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container_issue 19
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container_title Applied physics letters
container_volume 107
creator Leroux, M.
Kihlstrom, K. J.
Holleis, S.
Rupich, M. W.
Sathyamurthy, S.
Fleshler, S.
Sheng, H. P.
Miller, D. J.
Eley, S.
Civale, L.
Kayani, A.
Niraula, P. M.
Welp, U.
Kwok, W. -K.
description We demonstrate that 3.5-MeV oxygen irradiation can markedly enhance the in-field critical current of commercial second generation superconducting tapes with an exposure time of just 1 s per 0.8 cm2. The speed demonstrated here is now at the level required for an industrial reel-to-reel post-processing. The irradiation is made on production line samples through the protective silver coating and does not require any modification of the growth process. From TEM imaging, we identify small clusters as the main source of increased vortex pinning.
doi_str_mv 10.1063/1.4935335
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subjects CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
defects
energy storage (including batteries and capacitors)
phonons
spin dynamics
superconductivity
thermal conductivity
title Rapid doubling of the critical current of YBa 2 Cu 3 O 7-δ coated conductors for viable high-speed industrial processing
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